I'd like a new pistol grip to replace the stock one on my Colt 6920. Definitely want something a little more molded and comfortable.

Bonus points if the bottom of it closes up and I can store an extra battery for my Aimpoint Pro down there.

I have a Hogue grip for some of my pistols, and thought that would fit very well, but I can't seem to find exactly what I want.

Do they make one with a beavertail and a storage compartment?

Essentially a cross between these two?

Beavertail Model
Cargo Management Model

Edit: Hogue is not required... just something similar.

I have the Blackhawk Ergo grip on mine and it's extremely comfortable. It has a storage compartment but the bottom cap doesn't fit very snugly on mine.
http://www.blackhawk.com/Products/Stocks-Long-Gun-Accessories/Long-Gun-Accessories/On-Gun-Components/Grips-Rail-Covers/AR-15-Ergonomic-Grip.aspx

Grips are entirely subjective, what I prefer and fits my hand may not be the best for you. That being said I prefer the right hand only Ergo grip. Have one on all my AR's.

Black Friday bump

I have had several.  My hands are large and I have trouble finding one that fits well.  Currently I have Hogue and Ergo grips on my rifles.  They seem to be my favorite so far but I just ordered a TacStar and am curious to see how it feels.  I have looked high and low for a Pachmayer Vindicator but they apparently don't make them anymore so I am keeping my eyes open for a used one.  The Hogue is my favorite so far but still not "the grip" for me.

I love my hogue grips. They fit my hands perfectly and are extremely comfortable to me.

I have a couple Hogue grips and a couple Ergo's on my rifles and I like both of them.